# 100 Users Evidence API | Official Website

The 100 Users API exposes structured product-testing evidence while preserving access and trust boundaries. Public endpoints provide critic dossiers, intervention summaries, product reports, calibration status, and public evidence receipts. Founder claims use domain-matched work-email challenges and organization-scoped access sessions. Verified owners can unlock private evidence and perform permissioned intervention, retest, and outcome writes. Mutating operations require idempotency keys and retain audit receipts. Predictions, evidence, disclosures, consent records, human observations, and outcomes are append-only. Outcome trust states distinguish modeled, submitted, source-verified, and independently reviewed evidence; only verified states count toward the commercialization North Star. The API documentation page includes example requests, response contracts, evidence classes, and health status. The sovereign JSON discovery endpoint is available at https://100-users.com/api/content.